"During November and December 2014 I staged a production of Beckett's NOT I as a 3D holographic projection.
Nobody realised that it wasn't real - that in fact there wasn't anyone there on the stage.
It was the kind of hologram that doesn't require the audience to wear goggles"
Written for 'Imagined Theatres', ed. Daniel Sack
with a reflection / gloss by Peggy Phelan
Kate Moss... Billie Whitelaw...
There's also the example of Tupac Shakur playing live at Coachella.
the entries speak for themselves in this connection